Zan and Jayna were one of several sets of twins whose ancestors had ruled Exor for generations (elementals of Water, Heart, Vapor, Plant, Metal, Crystal, Fire, Rock, Shadow and Sound). Their powers were granted to them 
directly by the Ten Elements of the Universe to protect and rule over the people of Exor.
Exor's downfall began with their first contact with an outside civilisation, the Jrxans. The Jrxans offered the Exorians incredibly advanced technology in return for servitude. Finding such a bargain unacceptable, Zan and
Jayna spoke out against the dealings, and were branded traitors by the other rulers of Exor. In fact, not only were the Jrxans using Exorians as slaves, but they were using the Exorians' life essence to power their technology. Still objecting to this horrific practice, Jayna and Zan were stripped of their regency and rights. This was the final straw, promtping the Wonder Twins to flee from the Jrxans in a stolen ship. The ship was not all they stole - they also took with them the Jrxans' most advanced and valued piece of technology - the Flesh-Driver.
